Ventilator



B. K. PAGET Oct. 25, 1938.

VENTILATOR Filed March 17, 193'? 2 Sheets-Sheet 1 Ea. 3 25 f g a wtb b fierickimueifi 721 82 I A Gum MA;

B. K. PAGET Oct. 25, 1938.

VENTILATOR 2 Sheets-Sheet 2 Filed March 17, 193'? Patented Oct. 25, 1938 UNITED STATES PATENT OFFICE.

2,134,143 VENTIIATOR Bertie Kenneth Paget, Cleveland, Ohio Application March 1'7, 1937, Serial No. 131,365 ,3 Claims. (01. 98-42) This invention relates to ventilators, and more especially to ventilators for exhausting the air from buildings through an elongated opening in the roof thereof and having means for controlling the rate of exhausting the air.

The main object of the invention is to provide a ventilator of the above character, which consists of an elongated unit made up of a plurality 'of transverse sections consisting of pairs of opposed dampers. 7

Another object of the invention is to provide a ventilator of the above character, in which the dampers or openings controlled thereby are not visible from outside of the building and looking towards any side of the ventilator.

Another object of the invention is to provide a ventilator of the above character, in which the action of the wind does not impede ventilation but serves to increase same.

Another object of the invention is to provide a ventilator of the above character, in which the dampers may be partially or entirely closed, and when open either entirely or only slightly or closed, rain cannot enter the building through the ventilator.

Another object of the invention is to provide a ventilator of the above character, in which the opening and closing action of the dampers is controlled in unison.

Another object of the invention is to provide a ventilator of the above character, which is compact, of light and rigid construction, highly efiicient for its area, easy to manufacture and assemble and readily installed, and convenient in its opening-and closing operation.

With the above and other objects in view, the invention will be hereinafter fully described with reference to the accompanying drawings, and the novel features thereof will be distinctly pointed out in the appended claims.

In the drawings, similar characters of reference are used to designate corresponding parts in the different views.

Figure 1 is a side elevation of a ventilator constructed in accordance with my invention, the front side being omitted, and is a unit of two sections,

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1,

Fig. 3 is a plan view of Fig. 1,

Fig. 4 is a similar view to Fig. l of the lefthand section thereof, on an enlarged scale, the dampers being closed,

Fig. 5 is a sectional view taken on line 5-5 of Fig. 4,

Fig. 6 is a view similar to Fig. 1 and Fig. 4

showing one section of a multi-section unit with the dampers in fully open position.

Fig. 7 is an end elevation of a damper in its partially open position.

Fig. 8 is a sectional view taken on line 8-8 of Fig. 7,

Fig. 9 is a sectional view, on an enlarged scale, taken on line 9--9 of Fig. 5, illustrating the damper operating means, and

Fig. 10 is a plan illustrating the idler pulleys, pull-bars, connecting cords and pull-rope mechanism for actuating the dampers.

Referring to the drawings, I and 2 represent the side plates and 3 and 4 the end plates of an elongated rectangular and box-like casing 5 of any desirable area, which is adapted to be installed on the roof of a building over a ventilating opening thereof. Said side and end plates have at their lower edges inturned and upturned flanges at 6 and] for rigidity and also for providing gutters for drainage of condensation. The casing 5 may be fixed or anchored to the roof in any suitable manner. The upper edges of the side and end plates are also turned inwardly to provide stiffening flanges 8 and 9.

Arranged transversely of the casing 5 at the top thereof are a pair of top panels, A and B, each comprising downwardly inclined portions l and II which extend from side to side of said casing and their end edges are fixed to the casing as at l2.

Below and between said pair of top panels is a bottom panel C comprising portions l3 and I4 which are upwardly inclined to form a trough or gutter l5, the bottom panel is proportioned so that the edges of portions l3 and I4 are overlapped and in spaced relation to the edges of the top panels A and B. The end edges of the bottom panel are also amxed to the sides of the casing. At the ends of the casing '5 are upwardly inclined bottom panels l6 extending from side to side thereof and forming with the end plates 3 and 4 troughs or gutters l1. Opposite .the troughs or gutters l and I1 drain openings l8 and I9 through the side plates 3 and 4 are provided. Arranged transversely at the top ofthe casing 5 and extending from side to side thereof centrally between the pair of top panels A and B is a horizontal panel strip 20 having downwardly and inwardly turned side edges as at 2|. Depending centrally from said panel strip 2| is a vertical plate 22 to prevent slanting or.

wind-blown rain from entering the side openings 23 and 24 beneath said top panels. The vertical end walls 3 and 4 of the casing with their laterally extending top flanges 9 accomplish a similar function with respect to wind-blown rain at the ends of the ventilating unit.

For controlling the opposite pairs of transverse side openings 23 and 24 beneath each top panel A and B overlapping-the spaced bottom,

panels 13, C and I6, rotatably supported cylindrically curved dampers arranged in pairs and indicated by 25 and 26 are employed. Each damper consists of a cylindrical plate 21 of substantially one-third of a cylinder, which plate is fixed as at 28 to a pair of quadrant members 29 and 38. Said quadrant members have central bosses 3| and 32, which are provided with openings for receiving trunnions indicated by 33 and fixed therein by a set screw at 34. The trunnions 33 are rotatably supported in inwardly extending socket bearings 35 and 36 which are fixed to the side plates of the casing. The cylindrical plate 21 of each damper is in spaced relation to the undersides of the side edges indicated by 31 of the top panels, which edges are bent under and downwardly at 38 for strengthening said panels and also serving as a stop for limiting the movement of said dampers. The closing movement of the dampers is limited by an angle strip 39, which is fixed to the outerside of the cylindrical plate 21 near its inner side edge 40 and is adapted to engage the stop 38. The opening movement of the dampers is limitedby an'outstanding flange 4| of the outer side edge 42 of the cylindrical plate 21 engaging the stop 36. When the dampers are entirely closed their angle strips 39 engage the stops 38 and their outside edges 42 engage the trough panelsas shown in Fig. 4. When the dampers are in their fully open positions, their outstanding flanges 4| engage the stop 38, and the inner side edges 40 of each pair of dampers are in engagement thereby forming a flaring V for dividing the ascending air currents from inside of the building and directing it through the side openings 23 and 24, as shown in Fig. 6. When the dampers are either fully open or entirely closed, air is cut off and prevented from passing through the transverse spaces between the dampers and the ridge panels due to the engagement of the angle strips 39 or the outstanding flanges 4| with the stop 38.

For operating each pair of dampers in the opposite direction and in unison, the following described means is employed. The quadrant member 29 is provided with an integrally formed lever 43 which is shaped to describe the arc of a circle having the axis of trunnion 33 as a center. The quadrant 30 is provided'with a lever 44 similarly arranged with respect to the axis of the trunnion of quadrant 38. For actuating the circular arms 43 to the left and the circular arms 44 to the right in unison for opening each pair of dampers 25 and 26, or actuating said arms in the reverse direction for closing each pair of dampers, the following mechanism is employed:

A pull-bar 45 is arranged below the circular arms 43 and a similar pull-bar 46 below the circular arms 44, and said pull-bars are suspended from said arms by means of hooks fixed to said pull-bars and indicated by 41. Said hooks are made of flat bar material having their turned down free ends 48 in proper spaced relation at 49 for receiving the inner cut down portion 50 of the circular arm 43 or 44. The outer portion 5| of each circular arm near its end is indented to provide a transverse .nib 52, upon which rests the 'notched end 53 of the hooks 41. Cords 54 and 55 are fixed to the ends of the pull-bars 45 and 46 as at 56, and travel on or around horizontal idler pulleys indicated by 51, which are rotatably supported on transversely extending angle bars 58 and 53 which are fixed at 68 to the sides I and 2 of the casing. Central of the angle bar 58' is fixed a short angle bar 6| for supporting a pair of vertical pulleys 62 and 63. A pull-rope 64 passes over the pulleys 62 and 63, and the portion thereof between said pulleys is fixed to the cord 54 by means of a clip 65. By manipulation of the pull-rope 64 up or down thereby causing the clip 65 to move laterally and the cord 54 in the same direction, the pull-bars 45 and 46 will be actuated and the dampers 26 and 26 operated to their open or closed positions or any intermediate positions as desired.

From the drawings and description, it is thought that the construction and operation and advantages of this ventilator will be understood and appreciated, and readily seen that this ventilator is of compact rigid construction and highly efficient for its area, that the ventilator may be made up of any desired size unit consisting of any number of sections of pairs of transverse dampers, that the pairs of dampers are conveniently operated in unison, and that at no time can rain, even when wind-blown or slanting, enter the building through the ventilator.

Having fully described my invention, what I claim is:

1. In a ventilating apparatus a rectangular casing a plurality of spaced top panels extending across said casing, a plurality of bottom panels extending across said casing alternately arranged with respect to said top panels and vertically spaced to provide a ventilating passageway beneath each edge of each top panel, said top and bottom panels proportioned to overlap each other in a horizontal direction, dampers pivoted within said casing proportioned to close said passageways between said top and bottom panels, means operatively connected to said dampers to swing the dampers inwardly to a housed portion beneath said top panels and a vertically arranged member disposed above each bottom panel to prevent laterally moving rain from entering said passageways.

2. A ventilator unit comprising a rectangular frame having side and end walls, a series of spaced panels extending between said frame side walls at the bottom edges thereof to provide a plurality of ventilating openings near the bottom of the unit, a series of spaced panels extending between said frame side walls at the top edges thereof to provide ventilating openings near the top of the unit, the panels of said two series alternately arranged with respect to each other to provide a ventilating passageway beneath each edge of the panels carried at the top of the unit, means to close said passageways comprising a pair of dampers pivotally mounted beneath each of the panels carried at the top of the unit, means to connect said dampers of each pair to each other for oppositely swinging movement, and a vertical plate arranged in the opening between a pair of adjacent panels carried at the top of the unit to prevent laterally moving rain from entering said passageways.

3. In a ventilator, the combination of a casing consisting of side and end plates a pair of panels a B. KENNETH PAGET. 

